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2021 Changes to the National Notifiable Diseases Surveillance System and other relevant updates.
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12/11/2020
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Description:This memorandum summarizes changes to the National Notifiable Diseases Surveillance System (NNDSS) based upon interim position statements approved by the Council of State and Territorial Epidemiologists (CSTE) in 2020 and other relevant updates.
Please share this letter with surveillance and informatics staff in your jurisdictions responsible for collection or submission of NNDSS data to CDC.
CDC plans to post the 2021 event code list and the 2021 list of nationally notifiable conditions on the NNDSS website by December 31, 2020. The 2020 and 2021 lists of nationally notifiable conditions (NNC) are identical. Coronavirus disease 2019 (COVID-19) (event code 11065) is the only NNC added since 2019. In addition, in 2020, event code 11066 was assigned to multisystem inflammatory syndrome associated with coronavirus disease 2019 (MIS) to facilitate jurisdictions submitting case notifications for MIS to CDC. Two surveillance case definitions were also updated for 2020 and will also be applicable to 2021.
Jajosky_2021_NNDSS_State_Epi_Letter_for_Web_Final_Cleared.pdf
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Pages in Document:5 numbered pages
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